The Community for Technology Leaders
Green Image
Issue No. 06 - June (1981 vol. 3)
ISSN: 0162-8828
pp: 698-701
Anil K. Jain , Department of Computer Science, Michigan State University, East Lansing, MI 48823.
Lawrence R. Johnson , Department of Computer Science, Michigan State University, East Lansing, MI 48823; SYSTEMS Engineering Laboratory, Fort Lauderdale, FL.
ABSTRACT
A new version of the radix-2 row-column method for computing two-dimensional fast Fourier transforms is proposed. It uses a ``multiple vector'' FFT algorithm to compute the transforms of all the columns in an array simultaneously while avoiding all trivial multiplications. The minicomputer implementation of the algorithm runs faster than the 2 Ã- 2 vector radix FFT algorithm. Analysis of the numbers of complex additions and multiplications required indicate that implementations of the radix-4 row-column FFT and 4 Ã- 4 vector radix FFT on the same minicomputer would run slower than the multiple vector implementation.
INDEX TERMS
CITATION
Anil K. Jain, Lawrence R. Johnson, "An Efficient Two-Dimensional FFT Algorithm", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 3, no. , pp. 698-701, June 1981, doi:10.1109/TPAMI.1981.4767174
112 ms
(Ver )